Home / 145,120.15-217,663.89-50,332.87

Finding the Fourth Proportional to 145,120.15, 217,663.89 and 50,332.87

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Solution

The fourth proportional to 145,120.15, 217,663.89 and 50,332.87 is: 75,493.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,120.15 : 217,663.89 = 50,332.87 : x
  2. Step 2: Convert to fraction form
    145,120.15/217,663.89 = 50,332.87/x
  3. Step 3: Cross multiply
    145,120.15x = 217,663.89 × 50,332.87
  4. Step 4: Simplify right side
    145,120.15x = 10,955,648,279.06
  5. Step 5: Solve for x
    x = 10,955,648,279.06/145,120.15
  6. Step 6: Final answer
    x = 75,493.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.